Added Day 6 Part 2

src/day6/mod.rs

@@ -1,4 +1,5 @@
-use std::{fs::File, io::Read};
+use core::num;
+use std::{fs::File, io::Read, iter::Rev, str::Chars};
 
 pub fn part_1(file:&str) -> u64 {
     let mut directory = "/home/jason/Programming/Rust/aoc2025/src/day6/".to_owned();
@@ -46,6 +47,7 @@ pub fn part_2(file:&str) -> u64 {
     handle.read_to_string(&mut file).unwrap();
 
     let mut file_iter = file.lines().rev();
+    let mut input_lines: Vec<Chars<'_>> = Vec::new();
     let mut problems: Vec<Problem> = Vec::new();
 
     for elem in file_iter.next().unwrap().split_whitespace() {
@@ -59,12 +61,41 @@ pub fn part_2(file:&str) -> u64 {
     }
 
     for lines in file_iter {
-        for (pos, num) in lines.split_whitespace().enumerate() {
-            let value = num.parse::<u64>().unwrap();
-            problems[pos].numbers.push(value);
+        input_lines.push(lines.chars());
+    }
+
+    'primary: for prob in problems.iter_mut() {
+        'outer: loop {
+            let mut temp_num = String::new();
+            //println!("");
+            for digit_iter in input_lines.iter_mut() {
+                let temp_char = digit_iter.next();
+                //println!("{:?}", temp_char);
+                let temp_digit = match temp_char {
+                    Some(d) => if !d.is_whitespace() {
+                        d
+                    } else {continue},
+                    None => break 'outer
+                };
+
+                temp_num.push(temp_digit);
+            }
+
+            let reversed = temp_num.chars().rev().collect::<String>();
+
+            let parsed = reversed.parse::<u64>();
+            //println!("{:?}", parsed);
+            let number = match parsed {
+                Ok(num) => num,
+                Err(_) => continue 'primary,
+            };
+
+            prob.numbers.push(number);
         }
     }
     
+    //println!("{:?}", problems);
+
     let solution = problems.iter().fold(0, |acc, x| {
         let n = match x.operator {
             Operator::Add => x.numbers.iter().sum::<u64>(),
@@ -93,7 +124,13 @@ mod tests {
     use super::*;
 
     #[test]
-    fn test() {
+    fn test_part_one() {
         assert_eq!(part_1("test.txt"), 4277556);
     }
+
+    #[test]
+    fn test_part_two() {
+        assert_eq!(part_2("test.txt"), 3263827)
+    }
+
 }

src/main.rs

@@ -3,4 +3,6 @@ mod day6;
 fn main() {
     let d6p1 = day6::part_1("input.txt");
     println!("Day 6 Part 1 Solution: {}", d6p1);
+    let d6p2 = day6::part_2("input.txt");
+    println!("Day 6 Part 2 Solution: {}", d6p2);
 }